Radio resource measurement method, radio resource selection method, and apparatus

Abstract

This application discloses a radio resource measurement method, a radio resource selection method, and an apparatus. A terminal obtains a measurement result of a beam; and the terminal sends, to a network device, first indication information used to instruct to deactivate or delete a beam, where the beam satisfies a first quality condition. In addition, the terminal may further obtain a measurement result of the beam, and send, to the network device, second indication information used to instruct to activate or add the beam, to instruct the network device to activate or add a beam having relatively good communication quality, for communication with the terminal.

What is claimed is: 
     
       1. A method comprising:
 obtaining, by a terminal, first measurement configuration information; 
 obtaining, by the terminal, a plurality of beam reference signals from one or more base stations; 
 measuring, by the terminal, the plurality of beam reference signals according to the first measurement configuration information, to obtain measurement values of the plurality of beam reference signals; and 
 performing, by the terminal, filtering on the measurement values of the plurality of beam reference signals, to obtain a measurement result, wherein the measurement result comprises a cell measurement result or a beam measurement result, the cell measurement result indicating a measurement of a cell associated with a base station of the one or more base stations, and the beam measurement result indicating a measurement of a beam in which a beam reference signal is sent; and 
 wherein the performing, by the terminal, the filtering on the measurement values of the plurality of beam reference signals comprises:
 obtaining, by the terminal, measurement values of sets of beam reference signals in the plurality of beam reference signals, the sets of beam reference signals being received within a preset time range, each set of beam reference signals being received at a same moment; 
 averaging, by the terminal, measurement values of each set of beam reference signals, to obtain an average measurement value of a corresponding set of beam reference signals; and 
 processing, by the terminal in a preset manner, average measurement values of the respective sets of beam reference signals within the preset time range, to obtain a first measurement result, and using the first measurement result as the cell measurement result. 
 
 
     
     
       2. The method according to  claim 1 , wherein the terminal obtains the measurement result of the plurality of beam reference signals in a same cell or different cells; and
 the cell measurement result comprises a serving cell measurement result or a neighboring cell measurement result. 
 
     
     
       3. The method according to  claim 1 , further comprising:
 obtaining, by the terminal, second measurement configuration information; 
 determining, by the terminal, a beam reference signal measurement set from the plurality of beam reference signals based on the second measurement configuration information, the beam reference signal measurement set comprising one or more beam reference signals; and 
 measuring, by the terminal, a beam reference signal in the beam reference signal measurement set, to determine whether to select the beam reference signal into a beam reference signal active set based on the second measurement configuration information, the beam reference signal active set comprising one or more beam reference signals. 
 
     
     
       4. The method according to  claim 3 , wherein the second measurement configuration information comprises a first preset threshold; and
 measuring, by the terminal, the beam reference signal in the beam reference signal measurement set, to determine whether to select the beam reference signal into the beam reference signal active set comprises: 
 measuring, by the terminal, the beam reference signal in the beam reference signal measurement set within a first preset period, to obtain a measurement result within the first preset period; and 
 selecting, by the terminal, the beam reference signal into the beam reference signal active set when the measurement result within the first preset period is greater than the first preset threshold. 
 
     
     
       5. The method according to  claim 3 , wherein the second measurement configuration information comprises a second preset threshold; and the method further comprises:
 measuring, by the terminal, a beam reference signal in the beam reference signal active set within a second preset period, to obtain a measurement result within the second preset period; and 
 selecting, by the terminal, the beam reference signal as a target beam reference signal when the measurement result within the second preset period is greater than the second preset threshold. 
 
     
     
       6. The method according to  claim 5 , further comprising:
 performing, by the terminal within a third preset time range, radio link monitoring (RLM) on a target beam on which the target beam reference signal is transmitted; and 
 when the target beam reference signal satisfies a radio link failure (RLF) condition, triggering, by the terminal, a Radio Resource Control connection re-establishment process. 
 
     
     
       7. The method according to  claim 5 , further comprising:
 when a measurement result of the target beam reference signal is less than a third preset threshold, selecting, by the terminal, a beam, on which a first beam reference signal in the beam reference signal active set other than the target beam reference signal is transmitted, to perform RLM on the selected beam; and 
 when the target beam reference signal and the first beam reference signal other than the target beam reference signal both satisfy an RLF condition, triggering, by the terminal, a Radio Resource Control connection re-establishment process; or 
 performing, by the terminal, RLM on all beam reference signals in the beam reference signal active set; and 
 when all beams in the beam reference signal active set satisfy the RLF condition, triggering, by the terminal, the Radio Resource Control connection re-establishment process. 
 
     
     
       8. The method according to  claim 1 , wherein the preset manner comprises averaging or finding a maximum value. 
     
     
       9. An apparatus, comprising:
 at least one communications interface; and 
 at least one processor connected with the at least one communications interface; 
 wherein the processor is configured to:
 obtain first measurement configuration information; 
 obtain a plurality of beam reference signals sent by one or more base stations; 
 measure the plurality of beam reference signals according to the first measurement configuration information, to obtain measurement values of the plurality of beam reference signals; and 
 perform filtering on the measurement values of the plurality of beam reference signals, to obtain a measurement result, wherein the measurement result comprise a cell measurement result or a beam measurement result, the cell measurement result indicating a measurement of a cell associated with a base station of the one or more base stations, and the beam measurement result indicating a measurement of a beam in which a beam reference signal is sent; and 
 
 wherein the processor is further configured to:
 obtain, measurement values of sets of beam reference signals in the plurality of beam reference signals, the sets of beam reference signals being received within a preset time range, and each set of beam reference signals being received at a same moment; 
 average measurement values of each set of beam reference signals, to obtain an average measurement value of a corresponding set of beam reference signals; and 
 process, in a preset manner, average measurement values of the respective sets of beam reference signals within the preset time range, to obtain a first measurement result, and using the first measurement result as the cell measurement result. 
 
 
     
     
       10. The apparatus according to  claim 9 , wherein the apparatus obtains the measurement result of the plurality of beam reference signals in a same cell or different cells; and
 the cell measurement result comprises a serving cell measurement result or a neighboring cell measurement result. 
 
     
     
       11. The apparatus according to  claim 9 , wherein the processor is further configured to:
 obtain second measurement configuration information; 
 determine a beam reference signal measurement set from the plurality of beam reference signals based on the second measurement configuration information, the beam reference signal measurement set comprising one or more beam reference signals; and 
 measure a beam reference signal in the beam reference signal measurement set, to determine whether to select the beam reference signal into a beam reference signal active set based on the second measurement configuration information, the beam reference signal active set comprising one or more beam reference signals. 
 
     
     
       12. The apparatus according to  claim 11 , wherein the second measurement configuration information comprises a first preset threshold; and
 the processor is further configured to: 
 measure the beam reference signal in the beam reference signal measurement set within a first preset period, to obtain a measurement result within the first preset period; and 
 select the beam reference signal into the beam reference signal active set when the measurement result within the first preset period is greater than the first preset threshold. 
 
     
     
       13. The apparatus according to  claim 11 , wherein the second measurement configuration information comprises a second preset threshold; and the processor is further configured to:
 measure a beam reference signal in the beam reference signal active set within a second preset period, to obtain a measurement result within the second preset period; and 
 select the beam reference signal as a target beam reference signal when the measurement result within the second preset period is greater than the second preset threshold. 
 
     
     
       14. The apparatus according to  claim 9 , wherein the preset manner comprises averaging or finding a maximum value. 
     
     
       15. A communications system, comprising at least one base station and at least one terminal, wherein the terminal is configured to: obtain first measurement configuration information, obtain a plurality of beam reference signals sent by one or more base stations, measure the plurality of beam reference signals according to the first measurement configuration information, to obtain measurement values of the plurality of beam reference signals, and perform filtering on the measurement values of the plurality of beam reference signals, to obtain a measurement result, wherein the measurement result comprises a cell measurement result or a beam measurement result, the cell measurement result indicating a measurement of a cell associated with a base station of the one or more base stations, and the beam measurement result indicating a measurement of a beam in which a beam reference signal is sent; and the base station is configured to receive the measurement result from the terminals; and
 wherein the terminal is configured to perform filtering on the measurement values of the plurality of beam reference signals by:
 obtaining, measurement values of sets of beam reference signals in the plurality of beam reference signals, the sets of beam reference signals being received within a preset time range, each set of beam reference signals being received at a same time moment; 
 averaging measurement values of each set of beam reference signals, to obtain an average measurement value of a corresponding set of beam reference signals; and 
 processing, in a preset manner, average measurement values of the respective sets of beam reference signals within the preset time range, to obtain a first measurement result, and using the first measurement result as the cell measurement result. 
 
 
     
     
       16. The system according to  claim 15 , wherein the preset manner comprises averaging or finding a maximum value.